Free Keyword Density Checker
| Keyword / Phrase | Count | Density |
|---|
How to Use This Tool
Analyze your content for SEO optimization in three simple steps.
1. Paste Your Content
Copy your article, blog post, or essay and paste it directly into the text box above.
2. Click Analyze
Hit the blue button. Our algorithm instantly processes N-grams and frequency counts.
3. Optimize
Review the density table to prevent keyword stuffing and ensure topic relevance.
Why Check Keyword Density?
Avoid Penalties
Detect “Keyword Stuffing” before publishing to keep your site safe from search engine penalties.
Improve Readability
Identify overused words that make your content repetitive and harder for users to read.
Competitor Analysis
Paste competitor content to see which keywords they target and how frequently they use them.
Optimize LSI
Find opportunities to use Latent Semantic Indexing (LSI) keywords naturally in your text.
Frequently Asked Questions
There is no perfect number, but most SEO experts recommend keeping your primary keyword density between 1% and 2%. Anything above 3% may be considered keyword stuffing by search engines.
Yes. By default, our analyzer filters out common “stop words” (like “the”, “and”, “is”, “of”) to show you the density of meaningful topics and keywords.
The frequency counter works for any space-delimited language. However, the “Stop Word” filter is currently optimized for English text.
Directly, it’s less important than it used to be. However, it serves as a crucial guardrail. If density is too low, Google might not understand your topic. If it’s too high, you look like spam.
No. This tool runs 100% in your browser using JavaScript. No text is ever sent to our servers.
What Is Keyword Density and Why Does It Matter?
Keyword density refers to the percentage of times a specific keyword or phrase appears in a piece of content compared to the total word count. For search engine optimization (SEO), this metric acts as a vital gauge of relevance. If you are writing an article about “coffee beans,” search engines expect to see that phrase appear frequently enough to confirm the topic, but not so frequently that it disrupts the reading experience.
In the early days of SEO, webmasters would “stuff” keywords—repeating them dozens of times—to trick algorithms into ranking them higher. Today, Google’s algorithms (like Panda and BERT) are sophisticated enough to penalize this practice. Using a Keyword Density Checker helps you find the “Goldilocks zone”: enough keywords to rank, but not enough to trigger a spam penalty.
How to Interpret Your Results
When you use the tool above, you will see data for one-word, two-word, and three-word phrases. Here is how to analyze that data:
1. The Ideal Percentage
There is no “magic number” for SEO, but a generally accepted safe range for your primary keyword is 1% to 2%.
- Below 0.5%: Search engines may struggle to identify your page’s main topic.
- Above 2.5%: You are approaching the danger zone of keyword stuffing.
- Above 4%: This is almost certainly unnatural and should be edited down.
2. Hunting for Stop Words
Our tool automatically filters out common words like “the,” “and,” and “is.” However, you should look for “crutch words”—adjectives or adverbs you rely on too heavily (e.g., “very,” “really,” “actually”). Removing these improves the conciseness and punchiness of your writing.
3. LSI Keyword Opportunities
Latent Semantic Indexing (LSI) keywords are terms conceptually related to your main topic. If you are checking density for “Digital Marketing,” you might expect to see 2-word or 3-word phrases like “social media,” “content strategy,” or “email campaigns” appearing in your list. If your density report lacks these related terms, your content might lack depth.
Avoiding “Over-Optimization”
Over-optimization occurs when you write for robots instead of humans. Even if your math is perfect, if the sentence sounds robotic, users will bounce from your page. High bounce rates hurt your rankings just as much as poor keywords.
Use this tool as a diagnostic step in your editorial process. Write naturally first. Then, paste your text into the analyzer. If you see a keyword flashing red with 5% density, use a thesaurus to find synonyms or rewrite sentences to improve flow.
Word Phrases: The Secret to Long-Tail Ranking
Don’t just look at single words. The “Three Words” tab in this tool is a goldmine for Long-Tail Keywords. These specific phrases often convert better because they capture specific user intent. If you notice a specific 3-word phrase appearing naturally 3 or 4 times, consider making it a subheading (H2 or H3) to signal its importance to Google.
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